//$Id: BookingListAction.java 8748 2008-08-20 12:08:30Z pete.muir@jboss.org $
package org.jboss.seam.example.booking;

import static javax.ejb.TransactionAttributeType.REQUIRES_NEW;
import static org.jboss.seam.ScopeType.SESSION;

import java.io.Serializable;
import java.util.List;

import javax.ejb.Remove;
import javax.ejb.Stateful;
import javax.ejb.TransactionAttribute;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;

import org.jboss.seam.annotations.Factory;
import org.jboss.seam.annotations.In;
import org.jboss.seam.annotations.Logger;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.Observer;
import org.jboss.seam.annotations.Scope;
import org.jboss.seam.annotations.datamodel.DataModel;
import org.jboss.seam.annotations.datamodel.DataModelSelection;
import org.jboss.seam.annotations.security.Restrict;
import org.jboss.seam.faces.FacesMessages;
import org.jboss.seam.log.Log;

@Stateful
@Scope(SESSION)
@Name("bookingList")
@Restrict("#{identity.loggedIn}")
@TransactionAttribute(REQUIRES_NEW)
public class BookingListAction implements BookingList, Serializable {
    private static final long serialVersionUID = 1L;

    @PersistenceContext
    private EntityManager em;

    @In
    private User user;

    @DataModel
    private List<Booking> bookings;
    @DataModelSelection
    private Booking booking;

    @Logger
    private Log log;

    @Factory
    @Observer("bookingConfirmed")
    public void getBookings() {
        bookings = em.createQuery("select b from Booking b where b.user.username = :username order by b.checkinDate")
                .setParameter("username", user.getUsername())
                .getResultList();
    }

    public void cancel() {
        log.info("Cancel booking: #{bookingList.booking.id} for #{user.username}");
        Booking cancelled = em.find(Booking.class, booking.getId());
        if (cancelled != null) em.remove(cancelled);
        getBookings();
        FacesMessages.instance().add("Booking cancelled for confirmation number #0", booking.getId());
    }

    public Booking getBooking() {
        return booking;
    }

    @Remove
    public void destroy() {
    }
}
